Motion of spinning test bodies in Kerr spacetime

Eva Hackmann, Claus Lämmerzahl, Yuri N. Obukhov, Dirk Puetzfeld, and Isabell Schaffer
Phys. Rev. D 90, 064035 – Published 22 September 2014

Abstract

We investigate the motion of spinning test bodies in General Relativity. By means of a multipolar approximation method for extended test bodies we derive the equations of motion and classify the orbital motion of pole-dipole test bodies in the equatorial plane of the Kerr geometry. An exact expression for the periastron shift of a spinning test body is given. Implications of test body spin corrections are studied and compared with the results obtained by means of other approximation schemes.

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  • Received 8 August 2014

DOI:https://doi.org/10.1103/PhysRevD.90.064035

© 2014 American Physical Society

Authors & Affiliations

Eva Hackmann1,*, Claus Lämmerzahl1,2,†, Yuri N. Obukhov3,‡, Dirk Puetzfeld1,§, and Isabell Schaffer1,2,∥

  • 1ZARM, University of Bremen, Am Fallturm, 28359 Bremen, Germany
  • 2Institut für Physik, Universität Oldenburg, 26111 Oldenburg, Germany
  • 3Theoretical Physics Laboratory, Nuclear Safety Institute, Russian Academy of Sciences, B.Tulskaya 52, 115191 Moscow, Russia

  • *eva.hackmann@zarm.uni-bremen.de
  • claus.laemmerzahl@zarm.uni-bremen.de
  • obukhov@ibrae.ac.ru
  • §dirk.puetzfeld@zarm.uni-bremen.de; http://puetzfeld.org
  • trisax@t-online.de

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Issue

Vol. 90, Iss. 6 — 15 September 2014

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